Home / 11,173.58-15,421.41-6,393.72

Finding the Fourth Proportional to 11,173.58, 15,421.41 and 6,393.72

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Solution

The fourth proportional to 11,173.58, 15,421.41 and 6,393.72 is: 8,824.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.58 : 15,421.41 = 6,393.72 : x
  2. Step 2: Convert to fraction form
    11,173.58/15,421.41 = 6,393.72/x
  3. Step 3: Cross multiply
    11,173.58x = 15,421.41 × 6,393.72
  4. Step 4: Simplify right side
    11,173.58x = 98,600,177.55
  5. Step 5: Solve for x
    x = 98,600,177.55/11,173.58
  6. Step 6: Final answer
    x = 8,824.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.